LCOV - code coverage report
Current view: top level - ogr - ogrmultipolygon.cpp (source / functions) Hit Total Coverage
Test: gdal_filtered.info Lines: 50 60 83.3 %
Date: 2024-05-04 12:52:34 Functions: 10 11 90.9 %

          Line data    Source code
       1             : /******************************************************************************
       2             :  *
       3             :  * Project:  OpenGIS Simple Features Reference Implementation
       4             :  * Purpose:  The OGRMultiPolygon class.
       5             :  * Author:   Frank Warmerdam, warmerdam@pobox.com
       6             :  *
       7             :  ******************************************************************************
       8             :  * Copyright (c) 1999, Frank Warmerdam
       9             :  * Copyright (c) 2008-2013, Even Rouault <even dot rouault at spatialys.com>
      10             :  *
      11             :  * Permission is hereby granted, free of charge, to any person obtaining a
      12             :  * copy of this software and associated documentation files (the "Software"),
      13             :  * to deal in the Software without restriction, including without limitation
      14             :  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
      15             :  * and/or sell copies of the Software, and to permit persons to whom the
      16             :  * Software is furnished to do so, subject to the following conditions:
      17             :  *
      18             :  * The above copyright notice and this permission notice shall be included
      19             :  * in all copies or substantial portions of the Software.
      20             :  *
      21             :  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
      22             :  * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
      23             :  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
      24             :  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
      25             :  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
      26             :  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
      27             :  * DEALINGS IN THE SOFTWARE.
      28             :  ****************************************************************************/
      29             : 
      30             : #include "cpl_port.h"
      31             : #include "ogr_geometry.h"
      32             : 
      33             : #include "ogr_api.h"
      34             : #include "ogr_core.h"
      35             : #include "ogr_p.h"
      36             : 
      37             : /************************************************************************/
      38             : /*                          OGRMultiPolygon()                           */
      39             : /************************************************************************/
      40             : 
      41             : /**
      42             :  * \brief Create an empty multi polygon collection.
      43             :  */
      44             : 
      45             : OGRMultiPolygon::OGRMultiPolygon() = default;
      46             : 
      47             : /************************************************************************/
      48             : /*              OGRMultiPolygon( const OGRMultiPolygon& )               */
      49             : /************************************************************************/
      50             : 
      51             : /**
      52             :  * \brief Copy constructor.
      53             :  *
      54             :  * Note: before GDAL 2.1, only the default implementation of the constructor
      55             :  * existed, which could be unsafe to use.
      56             :  *
      57             :  * @since GDAL 2.1
      58             :  */
      59             : 
      60             : OGRMultiPolygon::OGRMultiPolygon(const OGRMultiPolygon &) = default;
      61             : 
      62             : /************************************************************************/
      63             : /*                         ~OGRMultiPolygon()                           */
      64             : /************************************************************************/
      65             : 
      66             : OGRMultiPolygon::~OGRMultiPolygon() = default;
      67             : 
      68             : /************************************************************************/
      69             : /*                  operator=( const OGRMultiPolygon&)                    */
      70             : /************************************************************************/
      71             : 
      72             : /**
      73             :  * \brief Assignment operator.
      74             :  *
      75             :  * Note: before GDAL 2.1, only the default implementation of the operator
      76             :  * existed, which could be unsafe to use.
      77             :  *
      78             :  * @since GDAL 2.1
      79             :  */
      80             : 
      81           9 : OGRMultiPolygon &OGRMultiPolygon::operator=(const OGRMultiPolygon &other)
      82             : {
      83           9 :     if (this != &other)
      84             :     {
      85           8 :         OGRMultiSurface::operator=(other);
      86             :     }
      87           9 :     return *this;
      88             : }
      89             : 
      90             : /************************************************************************/
      91             : /*                               clone()                                */
      92             : /************************************************************************/
      93             : 
      94        2988 : OGRMultiPolygon *OGRMultiPolygon::clone() const
      95             : 
      96             : {
      97        2988 :     return new (std::nothrow) OGRMultiPolygon(*this);
      98             : }
      99             : 
     100             : /************************************************************************/
     101             : /*                          getGeometryType()                           */
     102             : /************************************************************************/
     103             : 
     104       30419 : OGRwkbGeometryType OGRMultiPolygon::getGeometryType() const
     105             : 
     106             : {
     107       30419 :     if ((flags & OGR_G_3D) && (flags & OGR_G_MEASURED))
     108        3256 :         return wkbMultiPolygonZM;
     109       27163 :     else if (flags & OGR_G_MEASURED)
     110         345 :         return wkbMultiPolygonM;
     111       26818 :     else if (flags & OGR_G_3D)
     112        4985 :         return wkbMultiPolygon25D;
     113             :     else
     114       21833 :         return wkbMultiPolygon;
     115             : }
     116             : 
     117             : /************************************************************************/
     118             : /*                          getGeometryName()                           */
     119             : /************************************************************************/
     120             : 
     121        2681 : const char *OGRMultiPolygon::getGeometryName() const
     122             : 
     123             : {
     124        2681 :     return "MULTIPOLYGON";
     125             : }
     126             : 
     127             : /************************************************************************/
     128             : /*                          isCompatibleSubType()                       */
     129             : /************************************************************************/
     130             : 
     131             : OGRBoolean
     132       15862 : OGRMultiPolygon::isCompatibleSubType(OGRwkbGeometryType eGeomType) const
     133             : {
     134       15862 :     return wkbFlatten(eGeomType) == wkbPolygon;
     135             : }
     136             : 
     137             : /************************************************************************/
     138             : /*                           importFromWkb()                            */
     139             : /************************************************************************/
     140             : 
     141        2059 : OGRErr OGRMultiPolygon::importFromWkb(const unsigned char *pabyData,
     142             :                                       size_t nSize, OGRwkbVariant eWkbVariant,
     143             :                                       size_t &nBytesConsumedOut)
     144             : 
     145             : {
     146        2059 :     if (nGeomCount == 1 && nSize >= 9 && flags == 0 && pabyData[0] == wkbNDR &&
     147           3 :         memcmp(pabyData + 1, "\x06\x00\x00\x00\x01\x00\x00\x00", 8) == 0)
     148             :     {
     149             :         // Optimization to import a Intel-ordered 1-part multipolyon on
     150             :         // top of an existing 1-part multipolygon, to save dynamic memory
     151             :         // allocations.
     152           3 :         const size_t nDataOffset = 9;
     153           3 :         size_t nBytesConsumedPolygon = 0;
     154             :         // cppcheck-suppress knownConditionTrueFalse
     155           3 :         if (nSize != static_cast<size_t>(-1))
     156           2 :             nSize -= nDataOffset;
     157             :         OGRErr eErr =
     158           3 :             cpl::down_cast<OGRPolygon *>(papoGeoms[0])
     159           3 :                 ->OGRPolygon::importFromWkb(pabyData + nDataOffset, nSize,
     160             :                                             eWkbVariant, nBytesConsumedPolygon);
     161           3 :         if (eErr == OGRERR_NONE)
     162             :         {
     163           2 :             nBytesConsumedOut = nDataOffset + nBytesConsumedPolygon;
     164             :         }
     165             :         else
     166             :         {
     167           1 :             empty();
     168             :         }
     169           3 :         return eErr;
     170             :     }
     171             : 
     172        2056 :     return OGRGeometryCollection::importFromWkbInternal(
     173        2056 :         pabyData, nSize, /*nRecLevel=*/0, eWkbVariant, nBytesConsumedOut);
     174             : }
     175             : 
     176             : /************************************************************************/
     177             : /*                            exportToWkt()                             */
     178             : /************************************************************************/
     179             : 
     180         469 : std::string OGRMultiPolygon::exportToWkt(const OGRWktOptions &opts,
     181             :                                          OGRErr *err) const
     182             : {
     183         469 :     return exportToWktInternal(opts, err, "POLYGON");
     184             : }
     185             : 
     186             : /************************************************************************/
     187             : /*                         hasCurveGeometry()                           */
     188             : /************************************************************************/
     189             : 
     190        6115 : OGRBoolean OGRMultiPolygon::hasCurveGeometry(int /* bLookForNonLinear */) const
     191             : {
     192        6115 :     return FALSE;
     193             : }
     194             : 
     195             : /************************************************************************/
     196             : /*                          CastToMultiSurface()                        */
     197             : /************************************************************************/
     198             : 
     199             : /**
     200             :  * \brief Cast to multisurface.
     201             :  *
     202             :  * The passed in geometry is consumed and a new one returned .
     203             :  *
     204             :  * @param poMP the input geometry - ownership is passed to the method.
     205             :  * @return new geometry.
     206             :  */
     207             : 
     208          11 : OGRMultiSurface *OGRMultiPolygon::CastToMultiSurface(OGRMultiPolygon *poMP)
     209             : {
     210          11 :     OGRMultiSurface *poMS = new OGRMultiSurface();
     211          11 :     TransferMembersAndDestroy(poMP, poMS);
     212          11 :     return poMS;
     213             : }
     214             : 
     215             : /************************************************************************/
     216             : /*               _addGeometryWithExpectedSubGeometryType()              */
     217             : /*      Only to be used in conjunction with OGRPolyhedralSurface.       */
     218             : /*                        DO NOT USE IT ELSEWHERE.                      */
     219             : /************************************************************************/
     220             : 
     221             : //! @cond Doxygen_Suppress
     222           0 : OGRErr OGRMultiPolygon::_addGeometryWithExpectedSubGeometryType(
     223             :     const OGRGeometry *poNewGeom, OGRwkbGeometryType eSubGeometryType)
     224             : 
     225             : {
     226           0 :     OGRGeometry *poClone = poNewGeom->clone();
     227             :     OGRErr eErr;
     228             : 
     229           0 :     if (poClone == nullptr)
     230           0 :         return OGRERR_FAILURE;
     231           0 :     eErr = _addGeometryDirectlyWithExpectedSubGeometryType(poClone,
     232             :                                                            eSubGeometryType);
     233           0 :     if (eErr != OGRERR_NONE)
     234           0 :         delete poClone;
     235             : 
     236           0 :     return eErr;
     237             : }
     238             : 
     239             : //! @endcond
     240             : 
     241             : /************************************************************************/
     242             : /*                 _addGeometryDirectlyWithExpectedSubGeometryType()    */
     243             : /*      Only to be used in conjunction with OGRPolyhedralSurface.       */
     244             : /*                        DO NOT USE IT ELSEWHERE.                      */
     245             : /************************************************************************/
     246             : 
     247             : //! @cond Doxygen_Suppress
     248         418 : OGRErr OGRMultiPolygon::_addGeometryDirectlyWithExpectedSubGeometryType(
     249             :     OGRGeometry *poNewGeom, OGRwkbGeometryType eSubGeometryType)
     250             : {
     251         418 :     if (wkbFlatten(poNewGeom->getGeometryType()) != eSubGeometryType)
     252           0 :         return OGRERR_UNSUPPORTED_GEOMETRY_TYPE;
     253             : 
     254         418 :     HomogenizeDimensionalityWith(poNewGeom);
     255             : 
     256             :     OGRGeometry **papoNewGeoms = static_cast<OGRGeometry **>(
     257         418 :         VSI_REALLOC_VERBOSE(papoGeoms, sizeof(void *) * (nGeomCount + 1)));
     258         418 :     if (papoNewGeoms == nullptr)
     259           0 :         return OGRERR_FAILURE;
     260             : 
     261         418 :     papoGeoms = papoNewGeoms;
     262         418 :     papoGeoms[nGeomCount] = poNewGeom;
     263         418 :     nGeomCount++;
     264             : 
     265         418 :     return OGRERR_NONE;
     266             : }
     267             : 
     268             : //! @endcond

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